England's finest burial mound dates from around 3500 BC. Its entrance is guarded by huge sarsens and its roof is made out of gigantic overlapping capstones. About 50 skeletons were found when it was excavated; finds are on display at the Wiltshire Heritage Museum in Devizes. The barrow is a half-mile walk across fields from the parking layby.
A footpath also leads from Avebury Stone Circle to West Kennet (2 miles), passing the vast earthwork of Silbury Hill en route.